#include<stdio.h>
int main()
{
    int a,b,c,d,e;
    for(a=0;a<=1;a++)
    for(b=0;b<=1;b++)
    for(c=0;c<=1;c++)
    for(d=0;d<=1;d++)
    for(e=0;e<=1;e++)
       if((a&&b+c+d+e==3||!a&&b+c+d+e!=3)
        &&(b&&a+c+d+e==0||!b&&a+c+d+e!=0)
        &&(c&&a+b+d+e==1||!b&&a+c+d+e!=1)
        &&(d&&a+b+c+e==4||!b&&a+b+c+e!=4))
        {
            printf("A ispasted a piece of %s paper on his forehead.\n",a?"white":"black");
            printf("B ispasted a piece of %s paper on his forehead.\n",b?"white":"black");
            printf("C ispasted a piece of %s paper on his forehead.\n",c?"white":"black");
            printf("D ispasted a piece of %s paper on his forehead.\n",d?"white":"black");
            printf("E ispasted a piece of %s paper on his forehead.\n",e?"white":"black");
        }
}